The application of a robotic manipulator based on mutual mapping neural network ( MMNN ) is discussed .
讨论了一种基于双映射神经网络的机械臂运动控制器。
This is because of the impurity nitride ( MmNn ) in glass .
本文认为这是玻璃内部所含的杂质氮化物（MmNn）所致。
mmnn